Fast Acting Gypsum® - Earth Science (2024)

FAQs

How to use earth science fast acting gypsum? ›

Apply with Any Spreader

Apply at a rate of 5 lbs per 1,000 Sq. Ft. One bag of Earth Science Fast Acting Gypsum® will cover a 5,000 Sq. Ft.

Sta-Green fast-acting gypsum is a gypsum treatment that provides essential calcium and sulfur to the soil for thicker, greener turf without raising the soil pH. Fast-acting gypsum starts working immediately to increase water penetration and help loosen compacted soil, which gives roots more room to grow.

University tests have shown Hi-Yield® Fast Acting Gypsum is more effective at holding calcium and sulfur than conventional gypsum. Without AST® product is washed away and roots are more shallow AST® promotes root growth and holds product in the root zone. Safe for People, Pets and the Environment!

It is possible to use too much gypsum. Adding too much gypsum to your soil can damage it by removing necessary nutrients. An abundance of gypsum can remove elements such as iron, aluminum and manganese from your soil and cause them to contaminate other areas, harming plant growth.

Other research on local gypsum products showed that the average setting time of the self-made gypsums was around 8 minutes and 7 seconds and 3 minutes and 40 seconds. The study above also reported an average setting time of 20 minutes and 21 seconds for dental plaster and 10 minutes and 34 seconds for dental stone.

Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO ₄·2H₂O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, drywall and blackboard or sidewalk chalk. Gypsum also crystallizes as translucent crystals of selenite.

High-Strength/High-Expansion Die Stone (Type 5)

High-strength, high-expansion die stone is the highest grade of dental gypsum material and is designed for demanding dental applications, such as crown and bridge work.

Strength Requirements: Consider the specific strength requirements of the application. If high strength is a priority, cement mortar may be a better choice. Aesthetic preferences: Gypsum plaster is preferred for its smooth and white surface, making it suitable for interior walls where aesthetics play an important role.

Type II – Dental plaster used in model material. Type III – Dental stone used in mounting material. Type IV – Die stone or high storage stone. Type V – High strength which is used when a high expansion is needed as die material like in fabricating base metal alloy castings.

These areas are most likely where you or your county applied winter salt to melt ice. Salt draws moisture from grass roots causing it to turn brown. Also, check areas where your pets frequently go to the bathroom for damage. Then, transform those ugly brown spots into lush, green lawn by amending the soil with gypsum.

Does gypsum need to be watered in? ›

You do not have to work gypsum into the soil – simply use a spreader to distribute it over the surface of your lawn or garden. For garden application, also mix in compost or organic matter. Water immediately after application.

You do not have to work gypsum into the soil – simply use a spreader to distribute it over the surface of your lawn or garden. For garden application, also mix in compost or organic matter. Water immediately after application.

If you are planning to plant vegetables, shrubs, and flowers, then mix well 20 to 30 pounds of gypsum per thousand square feet into the soil and water. If you plan to apply gypsum in the presence of plantings, then a rate of 40 pounds per one thousand square feet should be used.

Use 1 kg per square metre or as required. How to apply: Garden beds – Spread evenly over the surface and dig in lightly. Lawns – Spread evenly over the surface and water in lightly.